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storvsc: Use the specified target ID in device lookup 

The current code assumes that there is only one target in device lookup.
Fix this bug. This will alow us to correctly handle hot reomoval of
LUNs.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Alex Ng <alexng@microsoft.com>
Tested-by: Vivek Yadav <vyadav@microsoft.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
4.6.x
K. Y. Srinivasan 2016-01-27 18:22:45 -08:00 committed by Martin K. Petersen
parent d791a8c60e
commit 9844122170
1 changed files with 5 additions and 5 deletions
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10
drivers/scsi/storvsc_drv.c
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@ -478,19 +478,18 @@ struct hv_host_device {
struct storvsc_scan_work {
struct work_struct work;
struct Scsi_Host *host;
uint lun;
u8 lun;
u8 tgt_id;
};
static void storvsc_device_scan(struct work_struct *work)
{
struct storvsc_scan_work *wrk;
uint lun;
struct scsi_device *sdev;
wrk = container_of(work, struct storvsc_scan_work, work);
lun = wrk->lun;
sdev = scsi_device_lookup(wrk->host, 0, 0, lun);
sdev = scsi_device_lookup(wrk->host, 0, wrk->tgt_id, wrk->lun);
if (!sdev)
goto done;
scsi_rescan_device(&sdev->sdev_gendev);
@ -541,7 +540,7 @@ static void storvsc_remove_lun(struct work_struct *work)
if (!scsi_host_get(wrk->host))
goto done;
sdev = scsi_device_lookup(wrk->host, 0, 0, wrk->lun);
sdev = scsi_device_lookup(wrk->host, 0, wrk->tgt_id, wrk->lun);
if (sdev) {
scsi_remove_device(sdev);
@ -941,6 +940,7 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
wrk->host = host;
wrk->lun = vm_srb->lun;
wrk->tgt_id = vm_srb->target_id;
INIT_WORK(&wrk->work, process_err_fn);
schedule_work(&wrk->work);
}